Carolina Yachts builds custom yachts in its production factory in South Carolina. Once complete, these yachts must be shipped to the dealership. They have collected this shipping cost data: Month Yachts shipped Shipping Cost January 6 $11,650 February 4 $9,100 March 3 $7,825 April 8 $14,200 May 2 $6,550 June 7 $12,925 July 5 $10,375

Prepare a scatter graph of the shipping data. Plot cost on the vertical axis and yachts shipped on the horizontal axis. Is the relationship between shipping costs and unit shipped approximately linear? Draw a straight line through the scatter graph.